[SOLVED] I was able to trace all the behavior below to a bad USB drive I had been using as a backup drive. Once I unplugged it, all the behavior described below stopped. Not a complaint but just an observation.
The list of enhancements states that "multisample loading process is now multithreaded, which gives much faster loading of programs with samples that take up lots of memory". I'm actually seeing the opposite. My projects now take longer to load. I use a lot of Kontakt instruments with many samples being loaded from an SSD drive. This version takes about twice as long to load projects from the previous version. Anyone else seeing this?
Also, when a project loads, the spinning donut disappears for a while leading me to believe that it failed to load, but if I wait, it reappears and finally loads the project.
No big deal but I just wanted to share in case it could be useful feedback for the bakers. I'm still lovin' Sonar Platinum!